Half brother actually, but oddly I don't know if it would feel that much different if you were a whole brother . . . which you most certainly are in a different manner of speaking.
Anyway . . . so glad we found each other after all this time. How did that all slip away? no matter, the years have passed, just a few notes in a diary and the odd thought: 'I wonder where he is now'? sort of thought.
As an only child, to discover I 'm not quite so 'only' in a wonderful thing. Come back soon, both of you, and we'll do some more catching up.